Founded in July 2017. Joon (JOO) is a French airline based at Paris' Charles de Gaulle Airport. It is a subsidiary of France's flag carrier, Air France (AFA).

Joon (JOO) is aimed at young people, according to its parent company Air France (AFA). "Joon" sounds similar to the French word "jeune," meaning young. It will serve destinations which face heavy competition from low-cost carriers (LCC)s.

Joon commenced operations on December 1 2017, serving short and medium-haul destinations within Europe, with initial routes to Barcelona, Berlin, Lisbon and Porto. Long-haul destinations in the Americas, Middle East (including Dubai and Abu Dhabi in UAE, Riyadh and Jeddah in Saudi Arabia and Muscat in Oman) and Africa were intended to be added in Summer 2018.

Joon (JOO) also plans to operate Airbus A350-900s in the future. (JOO) had plans to operate 28 aircraft by 2020: 18 short to medium haul and 10 long haul aircraft. However, it was not announced whether the aircraft will be transferred from Air France (AFA) or ordered solely for Joon (JOO).

December 2017: Commenced operations with an A340-313X, Air France leased.